Penstemon barbatus var. torreyi

Plant Information

Species:

barbatus

Species Authority:

(Cav.) Roth

Variety:

torreyi

Variety Authority:

(Benth.) D.D. Keck

Subgenus:

Habroanthus

Section:

Elmigera

Habit:

herbaceous perennial

Habit Woodiness:

herb

Lifespan:

short-lived

Plant Height - Min:

3.00dm

Plant Height - Max:

10.00dm

Habitat Description:

Dry hillsides in pinyon-juniper, Gambel oak, and ponderosa pine communities.

Distribution Range:

South parts of Utah and Colorado, south through north and east Arizona, New Mexico, and Tran-pecos Texas to Mexico.

Soil Type:

Dry gravelly soils.

Elevation - Min:

1600.00m

Elevation - Max:

2500.00m

Other Notes:

"Typical P. barbatus with a densely yellow-bearded palate is the common form in Mexico. Northward in the United States, however, the occurrence of bearded forms gradually decreases along with a gradual decrease in the amount of pubescence. Most plants in the northern part of its distribution bear glabrous palates and are referable to var. torreyi. A third variety, var. trichander, has varying degrees of pubescence on the anthers. The concept that this variety originated through introgression of woolly anthered P. strictus genes into P. barbatus was proposed nearly simultaneously by G. Moore and Crosswhite. Crosswhite observed that the distribution of var. trichander coincides with the region of overlap between P. barbatus var. torreyi and P. strictus." From Holmgren 1984 (Intermountain Flora).

First Bloom:

June

Last Bloom:

October

Chromosome Number:

2n = 16

References:

Holmgren NH. 1984. Penstemon and Keckiella. In Intermountain Flora, vol. 4. Ed. Arthur Cronquist et al. Bronx: The New York Botanical Garden.